Here are some of the most interesting science news articles I read this week:
Physicists build reversible tractor beam
Are male brains wired to ignore food for sex?
Scientists restore hearing in noise-deafened mice
Jewelry that harvests energy from your veins
Soda consumption tied to shorter telomeres, cell aging
3D printed masks offer new hope for facial cancer patients
A "Star Wars" laser bullet--this is what it really looks like
Kung fu stegosaur killed with its spiky tail
Have a good weekend, everyone, and see you Monday!